DATA SCRAMBLING AND ENCRYPTION OF DATABASE TABLES
First Claim
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1. A method for protecting data, the data arranged within a plurality of column entries, and the column entries arranged in a plurality of columns, the method comprising:
- encrypting the data within each column entry using an encryption key associated with the column within which such column entry is arranged; and
rearranging at least a subset of the column entries into different columns such that each rearranged column entry is arranged in a different column than that associated with the encryption key used to encrypt the data in such rearranged column entry.
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Abstract
An apparatus, program product and method protect data in a database table from unauthorized access through the combination of scrambling the data in the rows and columns of a database table and encrypting the data in different rows and/or columns using different encryption keys. A complementary descrambling and decryption process may then be used by an authorized party to recover the data stored in the scrambled and encrypted table.
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Citations
8 Claims
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1. A method for protecting data, the data arranged within a plurality of column entries, and the column entries arranged in a plurality of columns, the method comprising:
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encrypting the data within each column entry using an encryption key associated with the column within which such column entry is arranged; and rearranging at least a subset of the column entries into different columns such that each rearranged column entry is arranged in a different column than that associated with the encryption key used to encrypt the data in such rearranged column entry. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus, comprising:
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data resident in a computer readable medium and arranged within a plurality of column entries, with the column entries arranged in a plurality of columns; at least one processor; and program code configured to be executed by the at least one processor to protect the data by encrypting the data within each column entry using an encryption key associated with the column within which such column entry is arranged, and rearranging at least a subset of the column entries into different columns such that each rearranged column entry is arranged in a different column than that associated with the encryption key used to encrypt the data in such rearranged column entry.
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8. A program product, comprising:
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a computer readable medium; and program code resident in the computer readable medium and configured to protect data arranged within a plurality of column entries, with the column entries arranged in a plurality of columns, by encrypting the data within each column entry using an encryption key associated with the column within which such column entry is arranged, and rearranging at least a subset of the column entries into different columns such that each rearranged column entry is arranged in a different column than that associated with the encryption key used to encrypt the data in such rearranged column entry.
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Specification